Hay-tedder.



PATENTBD OUT. 4, 1904.

J. W. CLARK. HAY TEDDER.

APPLICATION FILED MAR. 21, 1904.

3 SHEETS-SHEET 1.

N0 MODEL.

will Z666 v.

a, 6 H /W 7 mm NW M Jwi w 7 w d PATENTED OCT. 4, 1904.

J. W. CLARK.

HAY TBDDER.

APPLICIATION FILED MAR. 21.1904.

3 SHEETSSHEET 2.

N0 MODEL.

PATENTED OCT. 4, 1904.

J. W. CLARK.

HAY TEDDER.

APPLIOATION FILED MAR. 21, 1904.

a SHEETS-SHEET s N0 MODEL.

UNITED STATES Patented October 4, 1904.

PATENT OFFICE.

JOHN W. CLARK, OF SPRINGFIELD, OHIO, ASSIGNOR TO INTERNATIONAL HARVESTERCOMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF NEW JERSEY.

HAY-TEDDER.

SPECIFICATION forming part of Letters Patent N0. 771,418, dated Qctober4, 1904.

Application filed March 21, 1904.

1'0 ail whom, it may concern:

Be it known that I, J OHN W. CLARK, a citizen of the United States,residing at Springfield, in the county of Clark and State of Ohio, haveinvented certain new and useful Improvements in Hay-Tedders, of whichthe following is a specification, reference being had to theaccompanying drawings, forming a part thereof.

My invention relates to hay-tedders in which a multiple crank-shaft issupported in bearings on a Wheel-frame, tedder-forks journaled on thecrank-shaft with vibrating links pivoted thereto and connecting themwith a separate part of the machine in a manner to control the operativepath thereof, in which the driving-axle, having the road-wheelsjournaled thereon and provided with the usual driving and backingratchet-and-pawl mechanism, is journaled on said wheel-frame and inwhich a draft-frame is hinged to the axle and provided with means forcontrolling the movement of the two frames relative to each other.

The objects of my invention are to provide wheel and draft frames thatshall be simple and strong, composed of few parts, and well adapted toreceive and support the operative parts; to provide an improvedmechanism for imparting the motion of the driving-axle to the multiplecrank-shaft; to provide an improved form of fork, and generally to soconstruct and organize the various parts as to produce a completemachine that will be cornpact and strong, light, and easily operated.

The invention consists primarily of a novel gear connection between thedriving-axle and the multiple crank-shaft and an improved frameconstruction, all of which will be more particularly described andpointed out in the following specification, in which Figure 1 is a planview. Fig. 2 is a partial end view of Fig. l on line A B. Fig. 3 is adetached detail of the axle and draft connections with their respectiveframes. Figs. 4 and 5 are details of the journal-bearings of the forks.Fig. 6 is a detail of the securingwasher at the ends of the multiplecrank-shaft.

Fig. 7 is a plan View of part of the driving- Serial No. 199,284. (Nomodel.)

gear. Fig. 8 is asection on line C D of Fig. 7 Fig. 9 is a detail ofpart of the drivinggear, and Fig. 10 is a detached elevation of thegear-shipping mechanism.

Like reference-numerals designate the same parts throughout the variousfigures.

The wheel-frame comprises a continuous U- shaped member having therearwardly-extend ing arms 1 and 2, that are connected by the cross-bar3, these parts being preferably made of square tubing. The driving-axle1 is journaled in bearings formed in depending brackets or hangers 5 and5, secured near the forward parts of the arms 1 and 2, and the multiplecrank-shaft 6 is journaled in bearings 7 and 8 on therearwardly-extended ends of the arms I and 2. A centrally-located framemember 9 is secured at one end to the forward side 10 of the wheel-frameand extends rearward beneath the bar 3 and has a supplemental journal-'bearing 11 for the multiple'orank- 7o shaft secured to its rear end. Adepending bracket 5 forms a supplemental support for the driving-axle ina manner that will be more particularly described later, the bracketbeing secured to the frame member 9, as shown in Figs. 7 and 8. Thedraft-frame is substantially U shape in form, having the front member 12and the rearwardly-extending arms 13 and 14, that are connectedintermediate their length by the cross-bar 15, said arms being bentdownward in rear of the cross-bar and having j ournal-bearings adaptedto receive the inner ends of the axle-journals, as shown in detail inFig. 3. Supplemental bars 16 and 17 are secured to the bars 12 and 15,and a ccntral draft-bar 18,having a swingletree connected to its forwardend, is also secured thereto. The seat is supported on springs securedat their lower ends to the two members 12 and 15, and the thills 19 and20 are also secured thereto. The draft-wheels are journaled on the axleand have the usual pawl-and-ratchet connections therewith common to thisclass of machines.

A rock-shaft 21, mounted in suitable bearings 22 and 23, secured to thedraft-frame bar 15, is provided at its ends with rearwardlyextendingarms 24 and 25, that are connected by pivotal links with cars 26 and 27,securedto the wheel-frame member 10.

Mounted on the draft-franie is a sectorrack 28 and a hand-lever 29,having the usual sliding detent and thumb-latch mechanism ongagingtherewith. The hand-lever is yieldingly journaled relatively to therock-shaft, and a spiral spring 30, operating between the lever and theadjustable sleeve 31 on the rockshaft, yieldingly holds theoperating-forks in contact with the ground, and the hand-lever 29 may bemanipulated to rock the wheelframe about its axis. The adjusting-sleeve31 has a clutch connection with the rock-shaft and is operated to adjustthe tension of the spring 30.

The gear connection between the drivingaxle 4 and the multiplecrank-shaft 6 comprises the following parts: An internal gearwheel 32 isloosely journaled on the axle and meshes with a pinion 33, journaled ona stud 3a, forming a part of the depending bracket 5. The pinion mesheswith a pinion 35, also journaled loosely on the axle and having anextended sleeve portion 36, having its bearingin the bracket 5 Thesleeve projects beyond the bearings and a sprocket-wheel 37 is securedthereto. The teeth of the pinion 33 are shrouded on the surface adjacentthe bracket 5 in a manner to prevent endwise movement of the pinion 35in one direction, and the sprocket-wheel 37 secures it against movementin the opposite direction. A clutch member 38, driven by a spline 39 onthe axle 4,is provided with clutch-teeth that are adapted to engage withsimilar teeth on the extended hub of the gearwheel 32, the two partsbeing held in engagement by means of the spiral spring 40, surroundingthe axle and operating between a fixed part secured to the axle and theend of the clutch member 38.

A forked lever 41, pivoted on an arm 42, secured to the bar 10, andoperated bya crank 43, straddles the clutch member 38' between thecollars and operates in a well-known manner to move the sliding memberout of engagement with the wheel-hub. A sprocketwheel 44, made in twoparts and adapted to receive the multiple crank-shaft between them in awell-known way, has a journal portion and forked ends integraltherewith, the forked ends being adapted to engage with theoppositely-disposed crank-arn'is of the multiple crank-shaft in awell-known manner and the journal having its bearings in the part 11.The sprocket chain 45 connects the two sprocketwheels, and 46 is anadjustable chaintightener secured to the arm 9,

The forks 50 are double-tined and their upper ends are clamped betweenthe two parts of journal-bearings surrounding the various crank-arms, asshown in Figs. 4 and 5. The forks are sustained intermediate theirlengths by radius-links 51, that are pivoted about the axle at theirforward ends and are provided with the socketed T-shaped members 52 attheir rearward ends. The opposite ends of the head portion of the T arereduced in size, and the tines of the forks are coiled about them in amanner to form a vibratable connection therewith. The journal-bearingsof the outside forks are held in place by means of the special washer53. (Shown in detail in Fig. 6.)

The manner of arranging the driving-gear is the important feature of myinvention, as it obviates the necessity of an intermediate counter-shaftbetween the driving-axle and crank-shaft.

\Vhat 1 claim as my invention, and desire to secure by Letters Patent,is

1. In a hay-tedder the combination of the traction-wheels, the axledriven thereby, the wheel -frame and a multiple crank shaft mounted onits rear end, a gear connection between the axle and crank-shaftcomprising an internal gear-wheel mounted to rotate about the axle andmeans for clutching it therewith, a pinion journaled on the axle andsupported in a bracket secured to the wheel-frame, a sprocket-wheelsecured to the pinion, a pinion journaled on a fixed part of the frameand meshing with thefirst-mentioned pinion and the internal gear-wheel,a sprocket-wheel on the crank-shaft and a chain connection between thetwo sprocket-wheels.

2. In a hay-tedder the combination of the traction-wheels, the axledriven thereby, the wheel-frame, a multiple crank-shaft mounted thereon,a gear connection between the axle and crank-shaft comprising aninternal gearwheel journaled on the axle and means for clutching ittherewith, a pinion journaled on the axle, a sprocket-wheel forming partof said pinion, an intermediate pinion journaled on a fixed part of theframe, and meshing with said internal gear-wheel and first-mentionedpinion, a sprocket-wheel on the crank-shaft and a chain connectionbetween the two sprocket-wheels.

8. In a hay-tedder the combination of the traction-wheels, the axledriven thereby, a wheel-frame, a multiple crank-shaft mounted thereon, agear connection between the axle and said crank-shaft comprising aninternal gear-wheel journaled on the axle and means for clutching ittherewith, a pinion mounted to rotate about the axle, a sprocket-wheelsecured to said pinion, an intermediate pinion journaled on a fixed partof the frameand meshing with said internal gear-wheel andfirst-mentioned pinion, a sprocket-wheel on the erank-shaft and a chainconnection between the two sprocket-wheels.

i. In a hay-tedder the combination of the traction-wheels, the axledriven thereby, a wheel-frame, a multiple crank-shaft mounted thereon, agear connection between the axle and said crank-shaft comprising aninternal gear-wheel journaled on the axle and means for clutching ittherewith, a pinion journaled IIO on the axle and having a sleeveportion, a bracket secured to the wheel-frame and forming a bearing forsaid sleeve, a sprocket-wheel secured to the sleeve, an intermediatepinion journaled on a stud, forming part of said bracket and meshingwith said internal gearwheel and said first mentioned pinion, asprocket-wheel secured to the crank-shaft and a chain connection betweenthe two sprocketwheels.

5. In a hay-tedder the combination of the traction-wheels, the axledriven thereby, a

wheel-frame, a multiple crank-shaft mounted thereon, a gear connectionbetween the axle and said crank-shaft comprising an internal gear-wheeljournaled on the axle and means for clutching it therewith, a pinionjournaled on the axle and having a sleeve portion, a bracket secured tothe wheel-frame and forming a bearing for said sleeve, a sprocket-wheelsecured to the sleeve outside the bearings, an intermediate pinionjournaled on a stud forming part of said bracket and meshing with saidfirst-mentioned pinion and said internal gear-wheel, said intermediatepinion having the ends of its teeth shrouded in a manner to preventendwise movement of the two outside gears, a sprocket-wheel secured tothe crankshaft, and a chain connection between the two sprocket-wheels.

6. In a hay-tedder the combination of a Wheel-frame, a draft-frame, anaxle, a multiple crank-shaft, said wheel-frame comprising a continuousU-shaped member having rearwardly-extending arms upon which is mountedthe crank-shaft, a cross-bar joining the arms, depending hangers securednear the forward ends of said arms and in which the axle is journaledand having the draft-frame pivotally connected with the dependinghangers.

7 In a hay-tedder the combination of a wheel-frame, a draft-frame, anaxle, a multiple crank-shaft, said wheel-frame and said draft-framecomprising continuous U-shaped members having rearWardly-extending arms,cross-bars connecting each pair of rearwardlyextending arms, dependinghangers secured near the forward ends of the arms of the wheel-frame andforming journal-bearings for the axle, and having therearwardly-extending arms of the draft-frame journaled on said bearingsfor the axle.

8. In a hay-tedder the combination of the traction-wheels, an axle, awheel-frame adapted to rock relative to the axle, a multiple crank-shaftjournaled on the wheel-frame and means connected with thetraction-wheels for rotating it, double-tined tedder-forks journaled attheir upper ends on the crank-shaft, vibrating links pivotally connectedat one end with the axle and provided at their opposite ends withT-shaped members having their shanks secured to the vibrating links andthe tines of the forks coiled about the opposite ends of their heads and.adapted to vibrate thereon.

9. In a hay-tedder the combination of an axle, a multiple crank-shaft,double-tined tedder-forks having substantially U-shaped heads,half-boxes that secure said heads between them and are journaled on thecrankshaft, the said forks having their tines coiled intermediate theirends and supported by links having pivotal connection with the saidaxle.

10. In a hay-tedder the combination of an axle, a multiple crank-shaft,double-tined tedder-forks having substantially U-shaped heads,half-boxes that secure said heads between them and are journaled on thecrankshaft, the said tines being supported intermediate their ends bylinks having pivotal connection with the axle.

In witness whereof I hereto affix my signa ture in presence of twowitnesses.

JOHN W. CLARK.

Witnesses: I

WM. H. GUTHRIE, J r., H. B. SPERRY.

